Locked Files
Occasionally, a diskette will contain a locked
file;
one which cannot be erased with
the SCRATCH command. Such files may be recognized by the
"<"
character which
immediately follows the
file
type
in
their directory entry.
If
you wish
to
erase a locked
file, you will have
to
use a disk monitor
to
clear bit 6
of
the file-type byte
in
the directory
entry on the diskette. Conversely,
to
lock a file, you would set bit 6
of
the same byte.
RENAME
The RENAME command allows you
to
alter the name of a program or other
file
in the
diskette directory. Since only the directory
is
affected, RENAME works.very quickly.
FORMAT FOR RENAME COMMAND:
PRINT#15, "RENAME0:new name = old name"
or it may be abbreviated as:
PRINT#15,"R0:new
name=old
name"
where
"new
name"
is
the name you want the
file
to have, and
"old
name"
is
the name
it
has now.
"new
name" may be any valid
file
name,
up
to
16
characters in length.
It
is
assumed you have already opened
file
15
to
the command channel.
One
caution-be
sure the
file
you are renaming has been properly closed before you
rename it.
EXAMPLES:
Just before saving a new copy
of
a "calendar" program, you might type:
PRINT#
15,"R0:CALENDAR/BACKUP = CALENDAR"
Or
to
move a program called
"BOOT,"
currently the first program on a diskette
to
someplace else in the directory, you might type:
PRINT#15,
"R0:TEMP=
BOOT"
followed
by
a COPY command (described later),.which turns
"TEMP"
into a new copy
of
"BOOT,"
and finishing with a SCRATCH command
to
get rid
of
the original copy
of
"BOOT.
"
20
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